Allstar Performance Holley 4500 Open Carb Spacer - 1/2" Thick MAC-1X Plus Removable/Washable moisture absorbent fabric

Plus Removable/Washable moisture absorbent fabric interior

this is a popular upgrade to older HANS Device with either fixed or sliding tethers

Tesla S 2015-21

Air Jack Kit

Anti-fatigue pre-curved hand conforms to each driver's hands

Allstar Performance Holley 4500 Open Carb Spacer - 1/2" Thick MAC-1X Plus Removable/Washable moisture absorbent fabricSpecially designed for drag race applications to isolate carburetor from manifold, spacers prevent horsepower robbing heat transfer and increase the distance from the bottom of the carburetor to the manifold plenum for better air flow. Spacers are CNC machined in the U. S. from a polymer compound able to withstand temperatures up to 400F. Available in open or four hole versions for 4150 and 4500 series Holley and Holley style carburetors in 1 2", 1",